Catheter



FIG. 1 is a perspective view of a catheter showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines immediately adjacent the claimed areas represent the bounds of the claim, and all other broken lines are included for the purpose of illustrating portions of the design that form no part of the claimed design. None of the broken lines form part of the claimed design. 

CLAIM The ornamental design for a catheter, as shown and described. 